toJson method

@override Map<String, dynamic> toJson()

Abstract function that concrete classes must implement. This must encode the internal data model to a JSON compatible representation.

While not required, it is suggested to call removeNull before returning.

Implementation

@override
Map<String, dynamic> toJson() {
  return JsonClass.removeNull({
    'alwaysIncludeSemantics':
        false == alwaysIncludeSemantics ? null : alwaysIncludeSemantics,
    'curve': Curves.linear == curve ? null : CurvesValues.encode(curve),
    'duration': duration.inMilliseconds,
    'onEnd': onEnd,
    'opacity': opacity,
    'child': child?.toJson(),
    ...args,
  });
}